



@article {3069,
	title = {Topological Edge Mode Tapering},
	year = {2022},
	month = {6/14/2022},
	abstract = {<p>Mode tapering, or the gradual manipulation of the size of some mode, is a requirement for any system that aims to efficiently interface two or more subsystems of different mode sizes. While high efficiency tapers have been demonstrated, they often come at the cost of a large device footprint or challenging fabrication. Topological photonics, offering robustness to certain types of disorder as well as chirality, has proved to be a well-suited design principle for numerous applications in recent years. Here we present a new kind of mode taper realized through topological bandgap engineering. We numerically demonstrate a sixfold change in mode width over an extremely compact 8μm distance with near unity efficiency in the optical domain. With suppressed backscattering and no excitation of higher-order modes, such a taper could enable new progress in the development of scalable, multi-component systems in classical and quantum optics.</p>},
	url = {https://arxiv.org/abs/2206.07056},
	author = {Christopher J. Flower and Sabyasachi Barik and Sunil Mittal and Mohammad Hafezi}
}
@article {2459,
	title = {Interference of Temporally Distinguishable Photons Using Frequency-Resolved Detection},
	journal = {Phys. Rev. Lett. },
	volume = {123},
	year = {2019},
	month = {9/24/2019},
	abstract = {<p>We demonstrate quantum interference of three photons that are distinguishable in time, by resolving them in the conjugate parameter, frequency. We show that the multiphoton interference pattern in our setup can be manipulated by tuning the relative delays between the photons, without the need for reconfiguring the optical network. Furthermore, we observe that the symmetries of our optical network and the spectral amplitude of the input photons are manifested in the interference pattern. Moreover, we demonstrate time-reversed HOM-like interference in the spectral correlations using time-bin entangled photon pairs. By adding a time-varying dispersion using a phase modulator, our setup can be used to realize dynamically reconfigurable and scalable boson sampling in the time domain as well as frequency-resolved multiboson correlation sampling.</p>},
	doi = {https://doi.org/10.1103/PhysRevLett.123.123603},
	url = {https://arxiv.org/abs/1904.03222},
	author = {Venkata Vikram Orre and Elizabeth A. Goldschmidt and Abhinav Deshpande and Alexey V. Gorshkov and Vincenzo Tamma and Mohammad Hafezi and Sunil Mittal}
}
